Namada rollback #1187
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Namada rollback #1187
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adrianbrink
reviewed
Feb 25, 2023
| let key = Key::from(metadata_key.to_owned().to_db_key()); | ||
| let previous_key = | ||
| Key::from(format!("pred/{}", metadata_key).to_db_key()); | ||
| let previous_value = self.read_subspace_val(&previous_key)?.expect( |
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Does this keep track of whether the key was changed in the last block; ie we need to make certain that we only revert to the pred key if it was actually different on block n-1
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As far as I understood these three keys are updated with every block
adrianbrink
reviewed
Feb 25, 2023
| let tendermint_dir = tendermint_dir.as_ref().to_string_lossy(); | ||
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| // Rollback tendermint state | ||
| std::process::Command::new(tendermint_path) |
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Are there docs we can link to that explain how Tendermint rollback behaves?
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I wasn't able to find proper documentation for this. We could link this file which contains the help message, or simply include it in the help message of the Namada command
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let's include the link to the code at least
grarco
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Mar 1, 2023
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tzemanovic
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Mar 8, 2023
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Apr 11, 2023
* grarco/rollback: changelog: add 1187 Improves rollback command description Parallel rollback Improves logging in rollback Managing missing keys in rollback Fixes `rollback` iterators Improves rollback docs Adds `rollback` command to cli Improves rollback comments Rollback deletes height-prepended keys Wip Namada rollback
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Implements a
rollbackcommand for Namada.The command first calls the
rollbackcommand of Tendermint and then proceeds to reverting the state of the application by:subspacekeys to their previous value based on the diff key of the last height (if any)